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# tree.py
# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under
# the BSD License: http://www.opensource.org/licenses/bsd-license.php
import os
import blob
import base
class Tree(base.IndexObject):
type = "tree"
__slots__ = "_contents"
def __init__(self, repo, id, mode=None, path=None):
super(Tree, self).__init__(repo, id, mode, path)
def _set_cache_(self, attr):
if attr == "_contents":
# Read the tree contents.
self._contents = {}
for line in self.repo.git.ls_tree(self.id).splitlines():
obj = self.content_from_string(self.repo, line)
if obj is not None:
self._contents[obj.path] = obj
else:
super(Tree, self)._set_cache_(attr)
@staticmethod
def content_from_string(repo, text):
"""
Parse a content item and create the appropriate object
``repo``
is the Repo
``text``
is the single line containing the items data in `git ls-tree` format
Returns
``git.Blob`` or ``git.Tree``
"""
try:
mode, typ, id, path = text.expandtabs(1).split(" ", 3)
except:
return None
if typ == "tree":
return Tree(repo, id, mode, path)
elif typ == "blob":
return blob.Blob(repo, id, mode, path)
elif typ == "commit":
return None
else:
raise(TypeError, "Invalid type: %s" % typ)
def __div__(self, file):
"""
Find the named object in this tree's contents
Examples::
>>> Repo('/path/to/python-git').tree/'lib'
<git.Tree "6cc23ee138be09ff8c28b07162720018b244e95e">
>>> Repo('/path/to/python-git').tree/'README.txt'
<git.Blob "8b1e02c0fb554eed2ce2ef737a68bb369d7527df">
Returns
``git.Blob`` or ``git.Tree`` or ``None`` if not found
"""
return self.get(file)
def __repr__(self):
return '<git.Tree "%s">' % self.id
# Implement the basics of the dict protocol:
# directories/trees can be seen as object dicts.
def __getitem__(self, key):
return self._contents[key]
def __iter__(self):
return iter(self._contents)
def __len__(self):
return len(self._contents)
def __contains__(self, key):
return key in self._contents
def get(self, key):
return self._contents.get(key)
def items(self):
return self._contents.items()
def keys(self):
return self._contents.keys()
def values(self):
return self._contents.values()
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